Time: 510 PM Thu August 22, 2024 Forecaster: Laura Smith

Internal Message Status
Flash Flood Prediction Program

Messages Issued For The Entire District
Messages have been issued for the entire District, effective now until 10:00 PM.

Thunderstorms with the potential to produce heavy rainfall are developing across western portions of the District. Surface winds across northeast Colorado are transporting an elevated airmass into the District and will fuel storm development with rainfall favoring areas of the plains and Quarry burn scar over the coming hours. Storm velocity of west to east at 10-15 mph is expected.

Optimal Period: Flooding is most likely to occur until 9:00 PM.
STORM RAINFALL POTENTIAL AND DURATION: Moderate to strong thunderstorms will have the potential to produce rainfall of 0.25-0.75" in 15-30 minutes.

WORST CASE SCENARIO: A slow-moving thunderstorm or large thunderstorm complex may produce up to 1.25” of rain in 45-60 minutes.

County Message Valid Times Prime Time
Lakewood 1 Current TO 1000 PM Current TO 900 PM
Wheat Ridge 1 Current TO 1000 PM Current TO 900 PM
Arvada 1 Current TO 1000 PM Current TO 900 PM
the City of Aurora 1 Current TO 1000 PM Current TO 900 PM
Arapahoe County 1 Current TO 1000 PM Current TO 900 PM
DIA 1 Current TO 1000 PM Current TO 900 PM
Denver County 1 Current TO 1000 PM Current TO 900 PM
Adams County 1 Current TO 1000 PM Current TO 900 PM
Douglas County 1 Current TO 1000 PM Current TO 900 PM
Broomfield County 1 Current TO 1000 PM Current TO 900 PM
Jefferson County 1 Current TO 1000 PM Current TO 900 PM
Boulder County 1 Current TO 1000 PM Current TO 900 PM

County-specific Quantitative
Precipitation Outlook
Precipitation Time 30-Minute Rainfall
and % Probability
Message
Potential
Plains      
Adams Current TO 1000 PM THU
0.25" (75%) to 0.5" (50%) to 0.75" (25%) ISSUED
Arapahoe Current TO 1000 PM THU
0.25" (75%) to 0.5" (50%) to 0.75" (25%) ISSUED
Boulder Current TO 1000 PM THU
0.25" (75%) to 0.5" (50%) to 0.75" (25%) ISSUED
Broomfield Current TO 1000 PM THU
0.25" (75%) to 0.5" (50%) to 0.75" (25%) ISSUED
Denver Current TO 1000 PM THU
0.25" (75%) to 0.5" (50%) to 0.75" (25%) ISSUED
Douglas Current TO 1000 PM THU
0.25" (75%) to 0.5" (50%) to 0.75" (25%) ISSUED
Jefferson Current TO 1000 PM THU
0.25" (75%) to 0.5" (50%) to 0.75" (25%) ISSUED
Foothills above 6500ft      
Boulder Current TO 1000 PM THU
Trace (75%) to 0.25" (50%) to 0.5" (25%) ISSUED
Douglas Current TO 1000 PM THU
Trace (75%) to 0.25" (50%) to 0.5" (25%) ISSUED
Jefferson Current TO 1000 PM THU
Trace (75%) to 0.25" (50%) to 0.5" (25%) ISSUED
MONITOR NATIONAL WEATHER SERVICE FOR SEVERE WEATHER STATEMENTS.
https://f2p2.udfcd.org/generator/